45421464545 has 8 divisors (see below), whose sum is σ = 55534168296. Its totient is φ = 35651564416.

The previous prime is 45421464503. The next prime is 45421464593. The reversal of 45421464545 is 54546412454.

It can be written as a sum of positive squares in 4 ways, for example, as 1814419216 + 43607045329 = 42596^2 + 208823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45421464545 - 2⁶ = 45421464481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45421464496 and 45421464505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85700612 + ... + 85701141.

It is an arithmetic number, because the mean of its divisors is an integer number (6941771037).

Almost surely, 2^45421464545 is an apocalyptic number.

It is an amenable number.

45421464545 is a deficient number, since it is larger than the sum of its proper divisors (10112703751).

45421464545 is a wasteful number, since it uses less digits than its factorization.

45421464545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171401811.

The product of its digits is 1536000, while the sum is 44.

Adding to 45421464545 its reverse (54546412454), we get a palindrome (99967876999).

The spelling of 45421464545 in words is "forty-five billion, four hundred twenty-one million, four hundred sixty-four thousand, five hundred forty-five".